diff --git a/CHANGELOG.md b/CHANGELOG.md
index c31ba2b06fd..f610890160e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -28,6 +28,7 @@
 ### Jsonnet
 
 * [CHANGE] Update rollout-operator version to 0.22.0. #10229
+* [CHANGE] Memcached: Update to Memcached 1.6.34. #10318
 * [BUGFIX] Ports in container rollout-operator. #10273
 
 ### Mimirtool
diff --git a/operations/helm/charts/mimir-distributed/CHANGELOG.md b/operations/helm/charts/mimir-distributed/CHANGELOG.md
index 5b6cccba473..7c3bb3d56c2 100644
--- a/operations/helm/charts/mimir-distributed/CHANGELOG.md
+++ b/operations/helm/charts/mimir-distributed/CHANGELOG.md
@@ -29,6 +29,8 @@ Entries should include a reference to the Pull Request that introduced the chang
 
 ## main / unreleased
 
+* [CHANGE] Memcached: Update to Memcached 1.6.34. #10318
+
 ## 5.6.0-rc.0
 
 * [CHANGE] Update rollout-operator version to 0.20.0. #9995